We make a range of gamma and neutron radiation detector products and components for the nuclear industry. If you work in and around nuclear material in the laboratory, as part of your job or in the field we have the products you need.

Medical imaging products

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CBRNE Homeland Security products and solutions for government, border control, airport and seaports, HazMat teams, ambulance crews, police, and armed forces. Thousands of our CBRNE devices are deployed around the globe. If you are on the front line in the fight against terrorism, our devices and systems give you a tactical advantage.

The D3S PRD can function as a search only dose measurement PRD but at the press of a button in the app it can also show isotope identification and with an over the air app upgrade transforms into a fully featured RIID with reachback and emailable report files including pictures. This makes the D3S range one of the most flexible and cost-effective radiation detection solutions available today.

Choose the model you need now and upgrade later.

D3S PRD

Designed for first-line users

One of the most capable PRD and SPRD you will find. The D3S PRD can operate in two modes:

D3S ID

Designed for radiation specialist

One of the most powerful RIIDs available.

The D3S ID has a more powerful detection app that allows the user to enter confirmation mode to take a more detailed scan of the source or sources to give the user full confirmation and reachback reporting capability.

Want to know more about D3S radiation detectors?

D3S part of a total radiological protection solution

Networked radiological threat protection

Harness the power of the SIGMA Network and Kromek to protect a city, border or critical infrastructure. Using the SIGMA Network, multiple detectors of different types can be networked together to provide a complete radiological map and alert system across a large area, including D3S NET concealable wearable detectors that can go anywhere a terrorist can lurk.

The D3S radiation detector app in detail

The Android phone radiation detection analysis app for the D3S is designed to be easy to use and has a common interface between the D3S PRD and D3S ID version of the device. This makes it much easier to move from the D3S PRD to the full D3S ID version which gives you full confirmation mode, reachback and reporting capability, all you need to do is update the app the ID version.

Why is identifying the type of gamma isotope important for Homeland Security and Hazmat situations?

There are a lot of radioactive isotopes out in the world. You need to know what you are facing.

No one wants to cause a full-scale alert over a truck of bananas or an old lady that has just come from the hospital.

Radioactive substances are used in medical devices and treatment, industrial tools used in the workplace and in products you have in the home. Some locations are also more naturally radioactive than others.

The D3S classifies the radioisotopes it finds into:

Medical: isotopes used in medical treatment or medical machines.

NORM (Naturally Occurring Radioactive Material) is material which occurs naturally or created by activity such as burning coal, making and using fertilisers, oil and gas production or mining.

Industrial: isotopes used in equipment or testing or some other industrial process. A common example is devices that use a radioactive isotope to test moisture levels or depth levels in building material.

SNM classes (Special Nuclear Material): material that has direct use in a clandestine fissile explosive or for its use in the production of nuclear material for use in a fissile explosive.

Armed with this knowledge the first responder can act appropriately. In each, every case speed and accuracy of detection is important as is the ability to reach back to get more specialist help if needed.

Why is neutron detection important for Homeland Security and Hazmat situations?

A radioactive substance used in a terrorist attack is likely to be shielded to prevent its detection by gamma radiation detectors; it is vital that any detectors carried can detect neutrons as well as identify the radioactive isotopes found.

Gamma radiation can be blocked by several centimetres of lead, concrete or steel.

Neutrons need several feet of water to block them if someone is intent on doing harm they will probably shield the gamma radiation source to escape detection but the D3S will still spot them.

Is there any location features?

Unfortunately not for the PRD version of the D3S.

But the ID version has a full reporting confirmation and reach back mode, which saves the location (longitude and latitude) from the phone’s GPS.

How much data can be saved/stored?

The D3S detector isn’t designed to store the data by itself. It is connected to the phone through Bluetooth and saves a .csv file every hour, which contains every one second spectrum from the last hour. A “detection log” file is also saved, which stores when the algorithm detected the presence of a gamma source or a high neutron count.

The D3S in search mode uses roughly 0.5gb in a twelve hour shift, so 1gb a day will mean a 32gb phone can last a month, before having to download the information to an external device.

If the Bluetooth connection is lost, it aggregates the spectra. For example if the link is lost for a minute, the detector will continue to build up one spectrum, until the phone is reconnected. The phone will then pull off the one minute spectrum. It can continue to do this for whichever comes first: 49.7 days, or until one of the bins gets full, and each bin (gamma channel or neutron counter) can hold 65534 counts.

What is the smallest amount of radioactive material the devices can detect?

We’re able to identify 1mCi sources from close to 15 metres (16.4 yards) away.

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